Ivan Rettig has extensive experience as an SAP/ABAP Developer, having worked at BKW FMB Energie AG since May 2013 and previously at upc cablecom from January 2000 to April 2013. Educated at zti Zuger Techniker- und Informatikschule between 1986 and 1999, Ivan also completed multiple SAP courses to further enhance expertise in the field.
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